10 CFR § 36.67 - Entering and leaving the radiation room.

---
identifier: "/us/cfr/t10/s36.67"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 36.67 - Entering and leaving the radiation room."
title_number: 10
title_name: "Energy"
section_number: "36.67"
section_name: "Entering and leaving the radiation room."
chapter_name: "NUCLEAR REGULATORY COMMISSION"
part_number: "36"
part_name: "LICENSES AND RADIATION SAFETY REQUIREMENTS FOR IRRADIATORS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Atomic Energy Act of 1954, secs. 81, 161, 181, 182, 183, 223, 234, 274 (42 U.S.C. 2111, 2112, 2201, 2231, 2233, 2273, 2282, 2021); Energy Reorganization Act of 1974, secs. 201, 206 (42 U.S.C. 5841, 5846); 44 U.S.C. 3504 note."
regulatory_source: "58 FR 7728, Feb. 9, 1993, unless otherwise noted."
cfr_part: "36"
---


# 36.67 Entering and leaving the radiation room.

(a) Upon first entering the radiation room of a panoramic irradiator after an irradiation, the irradiator operator shall use a survey meter to determine that the source has returned to its fully shielded position. The operator shall check the functioning of the survey meter with a radiation check source prior to entry.

(b) Before exiting from and locking the door to the radiation room of a panoramic irradiator prior to a planned irradiation, the irradiator operator shall:

(1) Visually inspect the entire radiation room to verify that no one else is in it; and

(2) Activate a control in the radiation room that permits the sources to be moved from the shielded position only if the door to the radiation room is locked within a preset time after setting the control.

(c) During a power failure, the area around the pool of an underwater irradiator may not be entered without using an operable and calibrated radiation survey meter unless the over-the-pool monitor required by § 36.29(b) is operating with backup power.